src/apps/icon-o-matic/shape/commands/RotatePathIndicesCommand.cpp

   1 /*
   2  * Copyright 2009, Stephan Aßmus <superstippi@gmx.de>. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include "RotatePathIndicesCommand.h"
   7
   8 #include <stdio.h>
   9
  10 #include <Catalog.h>
  11 #include <Locale.h>
  12
  13 #include "VectorPath.h"
  14
  15
  16 #undef B_TRANSLATION_CONTEXT
  17 #define B_TRANSLATION_CONTEXT "Icon-O-Matic-RotatePathIndiciesCmd"
  18
  19
  20 RotatePathIndicesCommand::RotatePathIndicesCommand(VectorPath* path,
  21                 bool clockWise)
  22         :
  23         PathCommand(path),
  24         fClockWise(clockWise)
  25 {
  26 }
  27
  28
  29 RotatePathIndicesCommand::~RotatePathIndicesCommand()
  30 {
  31 }
  32
  33
  34 status_t
  35 RotatePathIndicesCommand::InitCheck()
  36 {
  37         status_t ret = PathCommand::InitCheck();
  38         if (ret == B_OK && fPath->CountPoints() < 2)
  39                 return B_NOT_SUPPORTED;
  40         return ret;
  41 }
  42
  43
  44 status_t
  45 RotatePathIndicesCommand::Perform()
  46 {
  47         return _Rotate(fClockWise);
  48 }
  49
  50
  51 status_t
  52 RotatePathIndicesCommand::Undo()
  53 {
  54         return _Rotate(!fClockWise);
  55 }
  56
  57
  58 void
  59 RotatePathIndicesCommand::GetName(BString& name)
  60 {
  61         name << B_TRANSLATE("Rotate Path Indices");
  62 }
  63
  64
  65 status_t
  66 RotatePathIndicesCommand::_Rotate(bool clockWise)
  67 {
  68         BPoint point;
  69         BPoint pointIn;
  70         BPoint pointOut;
  71         bool connected;
  72
  73         int32 removeIndex;
  74         int32 addIndex;
  75         if (!clockWise) {
  76                 removeIndex = fPath->CountPoints() - 1;
  77                 addIndex = 0;
  78         } else {
  79                 removeIndex = 0;
  80                 addIndex = fPath->CountPoints() - 1;
  81         }
  82
  83         if (!fPath->GetPointsAt(removeIndex, point, pointIn, pointOut, &connected))
  84                 return B_ERROR;
  85
  86         fPath->RemovePoint(removeIndex);
  87         fPath->AddPoint(point, addIndex);
  88         fPath->SetPoint(addIndex, point, pointIn, pointOut, connected);
  89
  90         return B_OK;
  91 }
  92